Cementing-machine.



L. W. G. FLYNT.

CEMENTING MACHINE.

arrucmou 111.511 SEPT-28. 1910.

1,163,651. Patented Dec. 14, 1915.

2 SHEETS-SHEET I.

L. W. G. FLYNT.

CEMENTING MACHINE APPLICATION HLED SEN-28. mo.

Patented Dec. 14, 1915.

2 SHEETS-SHEET 2.

[MT/V5955:

UNITED STATES PATENT OFFICE.

LOUIS W. G. FLYNT, OF ROCHESTER. NEW YORK. ASSIGNOB T0 UNITED SHOE MACHINERY COLEPAIV'Y, O]? PETERSON, NEW JERSEY, A CORPORATION OF nnwJnnsnY.

CEHIEI'NTING-HACHINE.

Specification of Letters Patent.

Patented Dec. 14, 1915.

To all whom it may concern:

Be it known that I, LOUIS W. G. FLYNT, a subject of the King of Great Britain, and

at Rochester, in the county of Monroe and Stateof New York, have invented certain Improvements in cementing-hiaof which the following descriptlon, in connection with the accompanying drawings, is a specifimtion, like reference characters on the drawing indicating like parts in the several figures.

This invention relates to machines for delivering liquid material to stock and 1s herein illustrated as embodied in a machine for applying cement to the skived margin of a place of leather preparatory to the folding operation.

The effect of skiving or splitting a plece of leatheris toa certain extent to raise the fiber and toexpose the pores. a coat ing of cement is applied to such a surface in the usual manner, for example by a brush or a roll. such coating may often be easily peeled oil owing to the fact that the cement has not been worked into the pores and raised-fibers of the leather. The coating, in short, not to adhere with sufiicient firmness.

Accordingly, one feature of the present invention consists in the provision of for applying cement under presure to 'a piece of stock and means for rubbing into the stock the cement so applied. By thus forcibly the cement upon the stock and then rubbing it in a thorough impregnation is obtained so that the of cement will cling tenaciously. Any suitable meansfor accomplishing this may be employed; and in the illustrated embodiment of the invention, in order to simplify the machine and to obviate the hecessityifor providing two separate mechanisms for the cement andforrubhiing it into respectively the nonzlef through which the is'forced i'scontrolled by a cake which fast 'theretoa or hing member 'prorided pas a'ges' located at dne'side of the thereof'so that when the' alre is .open'edflthe is I the in advance of the rt y the member. And in order to increase the efiiciency of the machine another feature of the invention consists in means for feeding for ward a piece of stock and automatic means for squirting cement upon nook so fed. In the illustrated embodiment the wiper referred toahove projects from the nozzle and.v as it is moved upwardly by the piece of stock, communimta movement to the valve and thereby permits the cement to be forced out upon the stock.

It is desirable that the cement to be delirered be kept under pressure constantly and that this pressure should be approximately uniform.

Accordingly, another feature of this invention consists in the provision with a receptacle for cement said receptacle being prorided with an outlet, of means acting through iriction with the cement for causing said cementto accumulate under pres sure at said outlet. In the illustrated embodiment a cylindrical receptacle for cement contains rotatably mounted therein a plurality of thin disks having a common axis which coincides with the axis of the receptaele; and a deflector having fingers of a width equal approximately to the width of the spaces between the disks extends from a pointvnear the outlet to the hub on which the disks are mounted. The surface exposedI-o the cement by these disks is greater than the surface of the interior of the receptacle so that by rotating the disls a force is frictionallv applied to the cement which moves it in the direction of rotation of the disks This movement, however. is opposed by the deflector. the result being that a bod; of cement under pressure is maintained near the outlet. Withrthis construction the cement to be delivered to the stock is kept under an approximately constant pressure which, since it is'frictionally applied, can airnotimebecome excessive.

These and other features of the invention including certain details of construction and combinations of parts will be described in connection with the accompanying drawings and pointed out in'the appended claims.

Referring to the accompanying drawings; Figure 1 is a side elevation of a machine in which the present invention is embodied: Fig. 2 is an end elevation, the cover of the cement receptacle having been removed; Fig. 3 is a plan showing the strip oer or deflector; Fig. 4 is a detail sectional new of the nozzle, the combined valve and wiper being shown in full lines; Fig. 5 is a view of the lower portion of the nozzle taken at right angles to Fig. 4; and Fig; 6 is a plan of the nozzle and its asociated parts.

Fastened to the frame 1 by bolts 3 is a bracket 5 which has formed integral there with a cylindrical feed boat or receptacle 7, and to receptacle 9, cover 6 is attached by means of bolts 9. A rotatable shaft 11 edinbearings13and15 formedrespeeti ely in: boss on the frame and in a bosson thefeedboxcarriesatoneenda pulley 17 and at the other end a. plurality of feed disks 19 which are spaced apart. by collars '2 A stripper or deflector 21 held in place by one of the bolts 9hnsfinge1s23 PamtedbysIits25,and this stripper is hldin the position shown in Fig. 2, the feed disks 19 into the slits 25 and the fingers 23 substantially filling the spaces the disks. The extentof surfaceexpoedtothecementby thedisksfiismuebgre'aterthantheextcnt of the interior surface of the receptacle Consequently when the disks 19 rotated, the oementismovedinftheirdirection ofrotation. This movement, however, is 0 posed by the stripper 21 with the rsult that cement accumulates under re in the lower part of the receptacle Extendingfiomthelowerpartofthere ceptacle 7 and the interior thereof is T: pipe 27 to which isattachedbymeans'ofahollownntzila feed tube or nozzle 31 provided atits lower end with a. conical valve seat 33 which terin an elongated slot 35. Adapted to crxSper'ate this seat is a valve 37 proidal En an elongated rubber or 'wiper 39, said wiper being provided with passages or-groov es -11 through n'hieh when the valve lsrmseioemeniijsforodoutnpcnthe stock. These vsorlarelonaked on side ofthe nozzle from which thestockispresentedsbthatfliecementis delivered to the stock in advance of that portion which is engaged by the The valve 37 has two curved 43 which piece 49 the nozile 31; and two fiat eut-awayportions 45 which permit thecemsnttowhenthe Fast to the-valve is astem 47 the end of which pissa a crospieo 49 by the nozzle 31; and a spring 51 we can this i v, 7. -is t s ag t a was; 311 with the mean thus far described and with the understanding that cement is supplied to the receptacle 7 from any convenient sniiZCe as. for example, through a pipe rotation of the Shift 11in a clockwise direction, as viewed in Fig. 2, causes cement to be (lelifered to the nozzle under pressure. If new a piece of stock is held against the wiper 39 and moved along beneath the nozzle. cement will be applied to the stock under pressure through the passages 11 and nill then be rubbed into the stock by the Wiper 39.

The mechanism for feeding the stock which is adapted to carry it along beneath the nozzle in the manner indicated above will now be described- A bracket 55 is pro vided with a cylindrical shank or pivot 57 which is held in a bore in the frame of the machine by means of a screw bolt 59. R0- tatably mounted in bosses in this bracket is a shaft 61 which carries atone end a feed wheel 63 and at the other end a pulley 65. A spring 67 fastened at one end to the frame of the machine by a. screw 69 and having at its opposite end engagement e-"ith a hole 71 tends to turn the bracket 55 and thereby to keep the feed wheel 63 raised, it being understood that the spring 67 is stronger than the spring 51 whichacts upon the valve. Stops '73 and 75 through hoses on the frame serve to limit adjnstably the angular movement of the bracket 55; and the rod 77 pivotally attached to said bracket may be actuated by any suitable mechanism as, for example, by a treadle 79 to depress the feed wheel and permit a piece of stock to be fed to the machine. Fast to the cover 6 of the feed box 7 is an arm 81 a bore 83 in which a sleeve 85 isheld by means of a set screw 87, the stem 89 of the disk 91 being rotatable in said sleeve. A thumb nut 93 provided with a socket to receive a spring 95 is threaded into the upper end of the bore 83, a ball 97 belocated between said spring and a head 99 provided on the upper end of the stem 89. The feed disk 91 engages a reduced por tion 101 of the feed wheel 63 and serves in connection with this reduced portion to grip the stock and thereby insure its proper forward movement. An ed e gage 103 of ordinary, form is adjnstably attached to the bracket 55 by means of a set screw 105.

The operation of the machine is s follows: The stop 73 is adjusted in accordance with the thickness of the stock to be cemented, and power is applied in any suitable manner to the pulleys 17 and 65. The treadle 79'is then depreed and a piece of stock is fed to the machine with its edge in contact with the gage 103. As the stock is fed fer-ward the'valve 37 is opened and ceis squirted through the grooves 41 onto the of the stock; as the stock continues its forward movement the cement thus forcibly ejected upon it, is wiped into the stock by the member .39. The cement is thus eflectively rubbed into the fibers and pores of the stock so that a satisfactory coating is obtained.

Although the invention has been set forth -in connection with a machine for applying a coating of cement to leather, it should be understood that the invention is not limited in the scope of its application to the particular machine shown and described.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A machine of the class described having, in combination, a receptacle for cement, a nozzle connected therewith, said nozzle being provided at its delivery end with a narrow elongated aperture of different cross-section from that of the bore of the nozzle, a valve seat being formed at the junction of said elongated aperture and said bore, a valve shaped to fit said seat, and a wiper fast to said valve, said wiper corresponding in cross-section to the cross section of said elongated aperture, protruding from said aperture and bein provided with a passage located at one si e of the center thereof.

2. A machine of the class described having, in combination, means for feeding forward a iece of stock, power actuated means for squirting cement upon said stock, and a smooth-faced wiper having a rounded end arranged to contact with the stock close to the point of application of cement and adapted to rub the cement into the. stock.

3. A machine of the class described having, in combination, a receptacle for cement, a nozzle leading from said receptacle, said nozzle being provided with a valve seat, an imperforate valve cooperating with said seat, a wiper rigid with said valve and arranged to contact with the stock after the cement has been delivered upon-said stock, said wiper extending through the delivery opening of said nozzle, a spring normally holding said valve upon said seat, and means for feeding a piece of stock past said nozzle.

4. A machine of the class described having, in combination, a receptacle for cement, a nozzle leading from said receptacle, said nozzle being provided with an elongated delivery opening, a wiper located in said opening, said wiper conforming in the outline of its cross-section to the outline of the opening and having formed in one side thereof a plurality of passages, an imperforate valve for controlling the flow of cement through the nozzle and means for feeding a piece of stock past said nozzle and forpressing it against said wiper during the feeding movement.

5. A machine of the class described having. in combination, a receptacle for cement,-

pressure at said outlet whereby said outlet may be kept closed while the o eration of the means acting through friction continues, and means or controlling the flow of cement through said outlet.

6. A machine of the class described ha. ing, in combination, a rece tacle for cement, said receptacle being provlded with an outlet, a deflector adjacent said outlet, means for controlling the flow of cement through said outlet, a rotary device located in said receptacle and acting solely through friction in conjunction with said deflector to direct the cement toward said outlet, the surface of said device which is exposed to the cement being of greater extent than that of the interior of the receptacle.

7. A machine of the class described having, in combination, a receptacle for cement, said receptacle being provided with an outlet, a plurality of thin members spaced apart located in said receptacle, means for rotating said members whereby a force is frictionally exerted upon the cement which tends to move said cement in the direction of rotation of said members, means for deflecting the cement toward the outlet, and means for controlling the flow of cement through said outlet.

8. A machine of the class described, having, in combination,- a receptacle for cement, a nozzle leading from said receptacle, mean:. for feeding stock past said nozzle, a deflector and cooperating means acting through fric tion with the cement for supplying cement under pressure to the nozzle, and a combined valve and wiper arranged to be moved by the stock to open the nozzle and to cooperate with the feeding means in wiping into the pores of the stock the cement delivered throu h the nozzle.

9. machine of the class described having, in combination. a cylindrical receptacle for cement, a plurality of spaced disks rotatably mounted in said receptacle, means for rotating said disks, a deflector arranged to cooperate with said disks, in applying pressure to the cement, a nozzle leading from said receptacle, a combined valve and wiper carried by said nozzle, a feed wheel, an angularly movable bracket by which said wheel is carried, a. spring normally holding said bracket in raised position, means for lowering said bracket, and means for rotating said feed'wheel.

10. A machine of the class described having, in combination, a cylindrical receptacle for cement, a plurality of spaced disks mounted in said receptacle, means for rotating suid disks, a deflector arranged to co- 0perate with said disks, a cement applying 5 member, and means for conducting cement from said receptacle to said member.

In testimony whereof I have signed my LOUIS W. G. FLYNT.

\Vitnesscs IRVING E. Boo'rn, FRED C. PATRICK.

It is hereby certified that ir Letters Patent No. 1,163,651, granted December 14, 1915, upon the application of Louis W. G. Flynt, of Rochester, New York, for an improvement in cementing-Machines," an error appears in the printed specification requiring correction as follows: Page 2, line 56, for the words cross piece 49 carried by read fit snugly in the bore of; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 18th day of April, A. D., 1916.

R. F.. WHITEHEAD,

Acting Commissioner of Patents. 

